/Engine/Source/Developer/WidgetRegistration/Public/Layout/SeparatorTemplates.h
Creates and returns a small (2 Slate Unit), horizontalFSeparatorBuilderset to the color of the theme specified color for Background
a small (2 Slate Unit), horizontalFSeparatorBuilderwith the color of the theme specified color for Background
static [FSeparatorBuilder](API\Developer\WidgetRegistration\Layout\FSeparatorBuilder) SmallHorizontalBackgroundNoBorder()